209562728

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{1721}}^1$

素因数の和:2249

約数の個数: 32

約数和(自身を含む): 406667520

約数和(自身を除く): 197104792

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 491, 982, 1721, 1964, 3442, 3928, 6884, 13768, 15221, 30442, 53351, 60884, 106702, 121768, 213404, 426808, 845011, 1690022, 3380044, 6760088, 26195341, 52390682, 104781364, 209562728]

約数ペア:

[(1, 209562728), (2, 104781364), (4, 52390682), (8, 26195341), (31, 6760088), (62, 3380044), (124, 1690022), (248, 845011), (491, 426808), (982, 213404), (1721, 121768), (1964, 106702), (3442, 60884), (3928, 53351), (6884, 30442), (13768, 15221)]